Preparation and Properties of Self-Healing Polyurethane Elastomer Derived from Tung-Oil-Based Polyphenol.,ACS Omega

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Preparation and Properties of Self-Healing Polyurethane Elastomer Derived from Tung-Oil-Based Polyphenol.
ACS Omega ( IF 3.7 ) Pub Date : 2019-12-23 , DOI: 10.1021/acsomega.9b03082
Mei Li _{1,

2,

3,

4,

5} , Haiyang Ding _{1,

2,

3,

4,

5} , Xiaohua Yang _{1,

2,

3,

4,

5} , Lina Xu _{1,

2,

3,

4,

5} , Jianling Xia _{1,

2,

3,

4,

5} , Shouhai Li _{1,

2,

3,

4,

5}

Affiliation

A tung-oil-based polyphenol (ATOM), containing the phenolic hydroxyl group, was synthesized from tung oil and 4-maleimidophenol by the Diels-Alder addition reaction. Then self-healing thermosetting polyurethanes were prepared from ATOM and the polyurethane prepolymer. The chemical structure and cross-link network were confirmed by Fourier transform infrared spectroscopy (FTIR) and swelling tests. The products partially dissolved in trichlorobenzene when the temperature rose to 110 °C. Temperature-variable FTIR confirmed that the phenolic urethane starts to partially dissolve at 100 °C, which can be explained by the experimental phenomenon in swelling tests. Tensile property analysis showed that the broken and healed thermosets maintained about 46-64% of their original tensile strengths and 81-88% of their original elongations at break, respectively.

中文翻译：

桐油基多酚衍生的自修复聚氨酯弹性体的制备及性能。

通过狄尔斯-阿尔德加成反应，由桐油和4-马来酰亚胺基苯酚合成含有酚羟基的桐油基多酚（ATOM）。然后由ATOM和聚氨酯预聚物制备自修复的热固性聚氨酯。化学结构和交联网络通过傅立叶变换红外光谱（FTIR）和溶胀测试确认。温度升至110°C时，产品部分溶于三氯苯。温度可变的FTIR证实酚醛聚氨酯在100°C时开始部分溶解，这可以通过溶胀试验中的实验现象来解释。拉伸性能分析表明，断裂和愈合后的热固性材料分别保持其原始拉伸强度的46-64％和断裂时原始伸长率的81-88％，

更新日期：2020-01-14

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